Using the FontRegistry : FontRegistry « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. FontRegistry

1. FontData class is a lightweight class describing system fonts.
2. A FontData to a Font is analogous to an ImageDescriptor to an Image.
3. A FontData class describes the following properties of a Font:

1. name
2. height
3. style: combination of SWT.NORMAL, SWT.ITALIC, and SWT.BOLD

The Font itself is resource-based, i.e., if you create it, you must dispose of it. You can use FontRegistry to manage allocation and disposal of the fonts.

import org.eclipse.jface.resource.FontRegistry;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class FontRegistry {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell();
    shell.setLayout(new GridLayout(1, false));

    FontRegistry fontRegistry = new FontRegistry(display);

    fontRegistry.put("button-text", new FontData[] { new FontData("Arial", 9, SWT.BOLD) });
    fontRegistry.put("code", new FontData[] { new FontData("Courier New", 10, SWT.NORMAL) });

    Text text = new Text(shell, SWT.MULTI | SWT.BORDER | SWT.WRAP);
    text.setFont(fontRegistry.get("code"));
    text.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
    text.setText("");
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.horizontalSpan = 2;
    text.setLayoutData(gd);
    Button executeButton = new Button(shell, SWT.PUSH);
    executeButton.setText("Execute");
    executeButton.setFont(fontRegistry.get("button-text"));

    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
}